libstdc++-v3/testsuite/27_io/basic_fstream/cons/move.cc

   1 // Copyright (C) 2014-2024 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // { dg-do run { target c++11 } }
  19 // { dg-require-fileio "" }
  20
  21 // 27.9.1.15 basic_fstream constructors [fstream.cons]
  22
  23 #include <fstream>
  24 #include <string>
  25 #include <testsuite_hooks.h>
  26
  27 using namespace std;
  28
  29 std::string const name = "fstream-move.txt";
  30
  31 void
  32 test01()
  33 {
  34   string orig = "Let the whole outside world consist of a long paper tape.";
  35   fstream f(name, ios::in|ios::out|ios::trunc);
  36   VERIFY( f.is_open() );
  37   f << orig;
  38   fstream f1 = std::move(f);
  39   VERIFY( f1.is_open() );
  40   VERIFY( !f.is_open() );
  41   f1.seekg(0);
  42   string result;
  43   getline(f1, result);
  44   VERIFY( result == orig );
  45 }
  46
  47 void
  48 test02()
  49 {
  50 #ifdef _GLIBCXX_USE_WCHAR_T
  51   wstring orig = L"Let the whole outside world consist of a long paper tape.";
  52   wfstream f(name, ios::in|ios::out|ios::trunc);
  53   VERIFY( f.is_open() );
  54   f << orig;
  55   wfstream f1 = std::move(f);
  56   VERIFY( f1.is_open() );
  57   VERIFY( !f.is_open() );
  58   f1.seekg(0);
  59   wstring result;
  60   getline(f1, result);
  61   VERIFY( result == orig );
  62 #endif
  63 }
  64
  65 int
  66 main()
  67 {
  68   test01();
  69   test02();
  70 }